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Finding the Fourth Proportional to 7,444.40, 11,150.40 and 6,148.40

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Solution

The fourth proportional to 7,444.40, 11,150.40 and 6,148.40 is: 9,209.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,444.40 : 11,150.40 = 6,148.40 : x
  2. Step 2: Convert to fraction form
    7,444.40/11,150.40 = 6,148.40/x
  3. Step 3: Cross multiply
    7,444.40x = 11,150.40 × 6,148.40
  4. Step 4: Simplify right side
    7,444.40x = 68,557,119.36
  5. Step 5: Solve for x
    x = 68,557,119.36/7,444.40
  6. Step 6: Final answer
    x = 9,209.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.